The fh_forgotten_mappack3.rar file you have requested: Maps / Forgotten Hope Maps / Forgotten Hope Map Pack 3 - 6.74mb is not available. Perhaps try browsing all files for the game Battlefield 1942 and upload any files you want to share or are missing. This is the only information we could locate:
This converts two maps, Sandsturm and Portico Island, into FH maps with SP/Coop. Only catch is, you have to get the full version of those maps before you can use this. But Hamburger Hill delivers if Single Player is your thing, so check the read me to get those maps.